Home / 71,391.20-98,518.38-39,559.82

Finding the Fourth Proportional to 71,391.20, 98,518.38 and 39,559.82

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Solution

The fourth proportional to 71,391.20, 98,518.38 and 39,559.82 is: 54,591.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,391.20 : 98,518.38 = 39,559.82 : x
  2. Step 2: Convert to fraction form
    71,391.20/98,518.38 = 39,559.82/x
  3. Step 3: Cross multiply
    71,391.20x = 98,518.38 × 39,559.82
  4. Step 4: Simplify right side
    71,391.20x = 3,897,369,379.49
  5. Step 5: Solve for x
    x = 3,897,369,379.49/71,391.20
  6. Step 6: Final answer
    x = 54,591.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.